Learn to rap! Get a few base tracks. Improvise rapping over these tracks each day.

Spend 5 minutes humming and chanting in a made up language.

Carve something out of a standard block of clay each day. Create by subtraction. Set a time limit.

Take psychedelics in a guided setting. Do follow-up integration sessions with the guide

Do stream of consciousness writing first thing upon waking. 750 words.

Develop an alternative persona. Dress and act like this person. Make a friend as this other personality.

Learn to pray. Pray solo and with other people. Pray for other people.

Create a little shrine. Decorate and evolve the shrine for a period of time.

Start dream journaling. Get into lucid dreaming.